121200112112 has 10 divisors (see below), whose sum is σ = 234825217248. Its totient is φ = 60600056048.

The previous prime is 121200112097. The next prime is 121200112127. The reversal of 121200112112 is 211211002121.

It is an interprime number because it is at equal distance from previous prime (121200112097) and next prime (121200112127).

It is a super-2 number, since 2×121200112112² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3787503488 + ... + 3787503519.

Almost surely, 2^121200112112 is an apocalyptic number.

It is an amenable number.

121200112112 is a deficient number, since it is larger than the sum of its proper divisors (113625105136).

121200112112 is an equidigital number, since it uses as much as digits as its factorization.

121200112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575007015 (or 7575007009 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121200112112 its reverse (211211002121), we get a palindrome (332411114233).

The spelling of 121200112112 in words is "one hundred twenty-one billion, two hundred million, one hundred twelve thousand, one hundred twelve".